Telephone-receiver casing.



L STEINBERGER.

TELEPHONE RECEIVER CASING.

APPHCATIOM FILED 1Au.13,1913.

1,212,705. Patented Jan.16,1917.

WITNESSES" 2g 1 INVENTOR I M I I v I I phone-Receiver Casings,

LOUI BSTEINBERGER, 01E BROOKLYN, NEW YORK.

TELEPHONBRECEIVEB CASING.

Specification of Letteraiatent;

- Patented Jan. 16, 1917.

Application filed January 13, 1913, Serial 1T0. 741,862,

To all whom it may concern:

Be it known that I, LOUIS STEINBERGER, residing at Brooklyn, in the county ofKings and State of New York, have inventedcertain new and useful Improvements-in Teleof which the followingis a specification.

This invention relates to a telephone receiver casing, and the particular object of the invention is to provide a casing of the usual form, comprising a body part for retaining the receiver mechanism, and a cover detachable therefrom adapted to comprise therewith a clamp for retaining the diaphragm in operative position, the cover serving as the ear piece, and to provide a ramforcing section upon the body whereby to strengthen the larger end thereof, and to provide a substantial means forcooperating to connect the cover to the body, andto" arrange the reinforcing means so that it may serve as a substantial attaching member for the operative parts of the receiver mechanism.

A further object'is to provlde a metal ring having threads on its outer periphery and having parts adapted to be molded, or otherwise rigidly connected, as a relatively integral part of the 'bodystructure, the threads on the ring being adapted to mate corresponding threads on the cover.

' A further object is to provide a reinforcing member for the body part of" a telephone receiver casing, said member comprising a cup-shaped part adaptedtofit within and be substantially rigidly connected with the inner surface of the flaring end portion of the body, and having localities properly prepared and'arranged to serve as a substantial means for connecting thereto the operative parts ofthe receiver mechanism.

A further object is to provide the cover with a reinforcing member rigidly attached thereto in a simple manner andhavingparts arranged to cooperate with parts of the re- 7 inforcing member of the body whereby the cover may be readily attached to and removed from the body.

Other objects and aims of the invention,

than those referred" to 'of the body.

above, pointed out in arrangements of partsand applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended claims.

i In the accompanying drawings which are to be taken as a part of this specification,

be clamped uponthe body; Fig. 2is a top plan view of the body portion of thecasing;

and Fig. 3 is a transverse sectional view taken substantially on the plane ofline 3-3 ofFig. 1.

Referring to the drawings for a more detailed description of the structure, the'numeral 1 indicates the body portion thereof which is formed, or shaped, in the usual manner with an aperture as 2 at one end, for the passage of wires, and which has'its other end flared outwardly as atfito provide an enlarged annular portion for receiving" the diaphragm 22.

of the flaring end 3 is a reinforcing ringfl,

having threads'oupon its periphery, said threads occupying a position relatively to the end surface of the casing similar to the position ordinarily occupied byflsuch threads of the casing, and having sections cut away l I as at 7 for receiving portions of the material The'cut away sections 7 may be of any shape or size but are 'preferably circular and are also preferably flaredqinwardly so that the material of the body projecting into them may be held in dovetailed relation, as clearly shown in the drawings.

will be in part obvious and in part I the course of the following description of the elements, combinations,

a Resting upon the-upper annular surface The lower wall 8 of the cup-shaped portion 6 is cut away for the greater part of its area to correspond to the inner diameter of the casing, a narrow ridge or flange as 9 however, being retained and being formed with threaded apertures 10. The apertures 10 are preferably arranged at uniformly spaced points around the flange 9 and are adapted to receive screws or other attaching means for the operative mechanism of the receiver.

In constructing a receiver body in accordance with the provisions of this invention, the reinforcing member is inserted in position in a suitable mold and the material of the body is poured into the mold so that portions thereof will enter the parts 7 and fill the same, and so that the outer surface of the cup-shaped portion 6, and the under surface of the ring 4 will be intimately enga ged by the material of the body.

he reinforcing member may comprise any suitable material but is preferably formed, of brass and it may of course be attached in other ways than that shown without departing from this invention. The receiver body portion is preferably of electrose though obviously it may be formed of any other suitable material.

A receiver casing body constructed in the manner above set forth and clearly shown in the drawings is very substantial and the manner of forming the same is simple and inexpensive. The threads upon the metallic ring 4 are of course more substantial and less susceptible to. injury than threads formed upon the fictile material of the body as has been customary heretofore. The ring is disposed in a position to receive, and is capable of withstanding without injury, the most severe shocks which may be inflicted upon the structure, incident to careless handling thereof.

The cover 12 is preferably formed of the same material as the body and is formed with the usual sound aperture 13 and marginal flange 14. The reinforcing member for the cover comprises a metallic ring 15 threaded upon its inner surface to mate the threads. 5 of the body, and formed with a plurality of apertures 16 into which the material of the flange 14 extends for rigidly connecting the ring to the making it in effect, a part of the flange.

As clearly shown in the drawing, the threaded apertures 10 overlie depressions formed in the material of the casing and these depressions are threaded in continuation of the threads of the apertures so that together they form screw receiving sockets for the. attachment of the receiver mechanism. This construction has a peculiar advantage in that while the metallic flange serves particularly to withstand any strain applied to the screws, the relatively soft V of the invention,

material of the receiver casing serves in a friction capacity to retain the screw against possible accidental rotation. The two parts thus comprise an eflicient means for enabling the screws to serve their intended purpose. Furthermore, it will be noted that the intermediate portion of the reinforcing ring lies in close contact with the material of the casing throughout its extent. This portion is held in rigid contact with the material of the casing and is retained against any possible vibration independent of the casing by the attaching means illustrated.

As many changes could be made in the above construction and many apparently Widely diflerent embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense. It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope which as a matter of language, might be said to fall therebetween.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A telephone receiver casing, comprising a hollow cylindrical member open at one end, said cylindrical member being formed with a shoulder interiorly thereof adjacent said open end, a separately formed reinforcing ring arranged within said open end, said reinforcing rin having a flange-like part at its outer en for engaging the receiver cover and having a flange-like part at its inner end for engaging sald shoulder, the intermediate portion of said reinforcing rin lying in close contact with the adjacent sur ace portion of the receiver casing throughout its extent, and there being open ings formed through said adjacent portion into which portions of the material of the receiver casing are molded so as to comprise means for posltively fixing the intermediate portion rigidly in contact with the receiver casing.

2. A telephone receiver casing, comprising a hollow cylindrical member having a flaring opening at one end, a separately formed reinforcing member set into said flaring opening, said reinforcing memberbeing provided with openings into which material of the receiver and casing is molded whereby said parts are permanently locked together, said reinforcing member being provided with an internal shoulder overlying a portion of said receiver casing, said shoulder having a threaded opening and said receiver casing having a threaded opening which forms a continuation of the opening in the In testimony whereof I afiix my signature iiinforcng member, said threaded ipeni'ngs in the presence of two witnesses. 1

in a apted to receive a screw or suppor ng the receiver mechanism, and the LOUIS STEINBERGER wall of said latter opening being adapted Witnesses: v frictionally to resist the loosening the said 'L. GESSFOBD HANDY, screw. Lno EISENBERG.

Oopiee at this patent may be obtained tor the cents each, by addressing the "commissioner of Paton.

' walhlngton, D. 0. Y 

